Wiper and Washer Systems: Description and Operation: Overview

Wipers and Washers

OVERVIEW
The wipers and washers comprise a windshield wiper system with a conventional wiper linkage and 2 wiper blades and a windshield washer with jets located on the wiper arms. A headlamp powerwash is available on certain models.
The front wipers have 4 operational states:
- Flick wipe
- Auto
- Slow wipe
- Fast wipe.
Operation of the windshield wipers and washers and the headlamp powerwash is controlled by the CJB (central junction box) in response to driver inputs and signals from the rain/light sensor. The instrument cluster monitors the condition of the wiper/washer control switch and transmits driver requests to the CJB (central junction box) over the medium speed CAN (controller area network) bus.
The 'Auto' function requires an input from the rain sensor. The rain sensor is mounted on the inner surface of the windshield and transmits an infra-red signal to determine the amount of water on the outer surface of the windshield. A value is then transmitted to the CJB (central junction box) over the LIN (local interconnect network) bus.